This is a complete Superlift leaf spring suspension lift kit for the 1973-1991 Chevy/GMC 1/2 ton pickup 4WD
Provides 12” lift height
Includes rear Superlift leaf springs and blocks, front and rear Superlift shocks
What does it include?
Front and rear leaf springs, shocks, raised steering arm, adjustable drag link, raised 3-bolt steering block, rear block and u-bolt kit, and all hardware required specific to the 1973-1991 4WD Chevrolet/GMC ½ Ton Solid Axle Vehicles.
Detailed instruction manual walking you step-by-step through the lift kit installation procedures suitable for do-it-yourselfers (DIY) or professional installation
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Degree shim installed on the front springs to help driveline angle
Rear lift options include full replacement rear springs and a 3" block kit
Raised steering arm, raised steering block and drop drag link included
Sway bar drop brackets included
Rear brake hose included
Superlift shock absorbers included
This 12" lift system consists of Heavy Duty (HD) front leaf springs, durable Poly spring bushings, replacement front U-bolts, front sway bar brackets, a front driveshaft spacer, brake hose relocation brackets, rear brake hose, replacement rear leaf springs with Poly bushings, and a 3" block and u-bolt kit for the rear. For steering correction, a 4" raised steering arm, a 4" adjustable drag link, and a 3" raised steering block are also included. The kit is packaged complete with Superlift shocks.
Options include single and dual steering stabilizers, and a 4" rear shackle flip kit.
NOTE: If the vehicle is factory-equipped with auxiliary (dual) front shocks also order quantity two, part number 85150 shocks.
NOTE: 88-91 Suburban models require additional part number 315-88 bushing sleeve kit.
Tire
Wheel
Backspacing
Offset
38 x 14.5
-
3.75 - 4
-
40 x 15.5
-
3.75 - 4
-
IMPORTANT DISCLAIMER: The provided tire/wheel fitments are approximate. Actual dimensions of a given tire size can vary considerably from one brand to another. Manufacturers' wheel offset and backspacing measurement points are not always consistent. Backspacing greatly impacts tire-to-fender clearance when turning. Wheel width and backspacing influence whether the tires protrude past the fenders, and to what extent. Considering these important factors, we recommend that you fit-check your tire/wheel selection prior to purchasing.
Installation time: 4 hours
Difficulty level: 3 of 5
Additional Info
1977.5-91 models require clearance (machining) of the front driveshaft CV cluster to prevent binding. If the vehicle has a single exhaust, the cross-over pipe requires modification to clear front driveshaft. Front driveshaft MUST be lengthened.
Optional extended length brake hoses recommended.
Rear brake hose included in kit box.
Brake line/hose relocating hardware included in kit box.
This is a SwampRunner Series lift system that is intended primarily for off-road or exhibition use. Reference the "Important Product Use" section of the Warranty for additional safety-related information.
NOTE: If the vehicle is factory-equipped with auxiliary (dual) front shocks also order quantity two, part number 85150 Superide shocks.
NOTE: 88-91 Suburban models require additional part number 315-88 bushing sleeve kit.
